How to advertise listeners' PeerId

How to advertise PeerId of listeners to other listeners in auto-relay scenario example?

another question is How to advertise relay’s connected peers to each other

I have a relay that is public and listeners that are behind NAT I want to advertise my listeners’ PeerId to each other through the relay and after that, each listener can send messages to other listeners with /p2p-circuit/ mulltiaddr, above questions are about this scenario. Do you have any idea how to do that?